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nrobi144
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Adds a friends-of-friends trust score on every user avatar in Desktop feeds, threads, profile headers, and repost overlays. For pubkey X the score is the count of accounts in the active user's follow set who also follow X — Gossip / Snort convention. v1 is display-only; no threshold filtering. Data flow - `commons/wot/WoTService` — sparse `SnapshotStateMap<HexKey, Int>` + reverse index + per-follower snapshot for diff-based updates. Single-writer coroutine (Channel<Op> → `Snapshot.withMutableSnapshot`) serializes all mutations. Cap at 5000 follows/event blocks DoS via hostile kind-3s. Guardrail at 2000 follows/account skips WoT for mega-accounts. - `DesktopIAccount.wotService` — per-account instance, matches `Kind3FollowListState` / `BookmarkListState` conventions. - `Main.kt` binds `localCache.accountPubkey`, collects `localCache.contactListEvents` → `applyKind3`, collects `localCache.followedUsers` → `onFollowSetChange` + `subscriptionsCoordinator.loadKind3Batched(...)` with `onEose = markReadyOnce`. 2 s fallback timeout guarantees badge visibility even if index relays never EOSE. - `FeedMetadataCoordinator.loadKind3Batched(pubkeys, onEose)` — chunks authors into ≤100 per Filter within one subscription. Matches nostr-rs-relay defaults. UI - `commons/ui/components/UserAvatar` gets an optional `badge: @Composable BoxScope.() -> Unit`. Android call sites pass null (no compile-time coupling to Desktop-only tooltip APIs). - `desktopApp/.../ui/note/WoTBadge` — Material3 `TooltipBox` + `PlainTooltip` (multiplatform-ready, keyboard/screen-reader a11y). `rememberTooltipState(isPersistent = true)` fixes the vanish-too-fast desktop default. - `desktopApp/.../ui/note/WoTBadgedAvatar` — drop-in replacement for `UserAvatar` that overlays the badge when `LocalWoTService != null && LocalWoTReady && pubkey !in LocalSpamExemptKeys`. Score read is a plain `service.scores[userHex] ?: 0` — snapshot system tracks per-key, so avatars only recompose when their own score changes. - Call-site migration at 4 v1 surfaces: NoteCard header (covers feed / thread / bookmarks / search / QuotedNoteEmbed via NoteCard), FeedNoteCard repost header (2 avatars), UserProfileScreen header (2 sizes). Amy verbs - `amy wot get <pubkey|npub> [--json]` — hydrates a WoTService from the local FsEventStore, prints score for target pubkey. - `amy wot list [--threshold N] [--limit K] [--json]` — sorted score list. - `amy wot sync [--timeout N]` — batch-fetches kind-3 for the active follow set from outbox/inbox relays, persists to the event store. Tests + docs - 14 unit tests: `WoTServiceTest` covers happy path, sparse map, self/follower exclusion, kind-3 churn diff, guardrail, event cap, ready gate, clear. - Manual testing sheet with 17 scenarios at `desktopApp/plans/2026-07-01-wot-score-manual-testing-sheet.md`. - Plan at `docs/plans/2026-07-01-feat-desktop-wot-score-plan.md`. Prerequisite `DesktopLocalCache.consumeContactList` scoping fix landed as a separate commit.